A Curvilinear Study of Yield with reference to Crop-characteristics-Sugarcane

Abstract

Curvilinear technique as been utilised to find out the relation of yield of sugarcane with crop-characteristics, namely, height, girth and the number of canes per clump after stabilization .The study indicates that the yield, in general, increases with height and girth and may become stationary after these characteristics exceed certain values. It also shows that there should, in general, optimum number of canes per clump after stabilization so as to give maximum yield. This value varies from 2 to 3. A set of curve have been determined by this method which can be used to predict about two or three months before crop is ready for harvest. The significant improvement in the correlation of yields estimated from these curves with the actual a compared with linear multiple correlation is encouraging. The curvilinear regression accounts for about 80-90 percent of the variation in yield whereas the linear regression can account for 35-70 per cent of the variations.